Finding the Third Proportional to 8,013.75 and 12,440.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,013.75 : 12,440.72 = 12,440.72 : x
2. Step 2: Convert to fraction form
   8,013.75/12,440.72 = 12,440.72/x
3. Step 3: Cross multiply
   8,013.75x = 12,440.72 × 12,440.72
4. Step 4: Simplify right side
   8,013.75x = 154,771,483.02
5. Step 5: Solve for x
   x = 154,771,483.02/8,013.75
6. Step 6: Final answer
   x = 19,313.24